51464480486 has 4 divisors (see below), whose sum is σ = 77196720732. Its totient is φ = 25732240242.

The previous prime is 51464480447. The next prime is 51464480497. The reversal of 51464480486 is 68408446415.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12866120120 + ... + 12866120123.

It is an arithmetic number, because the mean of its divisors is an integer number (19299180183).

Almost surely, 2^51464480486 is an apocalyptic number.

51464480486 is a deficient number, since it is larger than the sum of its proper divisors (25732240246).

51464480486 is a wasteful number, since it uses less digits than its factorization.

51464480486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25732240245.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 51464480486 in words is "fifty-one billion, four hundred sixty-four million, four hundred eighty thousand, four hundred eighty-six".